Granted Patent
Utility
US 5,693,689 · App. 08/475,032
Monitor putty with increasing stiffness
Inventor:
Robert M. Gibbon
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jun 7, 1995
Inventor
Robert M. Gibbon
Assignee (at issue)
JMK International, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.